Behavior Driven Development (BDD) in Java is a software development approach that emphasizes collaboration between developers, testers, and non-technical stakeholders. It builds on the principles of Test Driven Development (TDD) by focusing on the behavior of the application from the user’s perspective. In BDD, specifications are written in a human-readable format, often using Gherkin syntax, which allows for clear communication of requirements. Java frameworks like JUnit5 and tools such as Cucumber facilitate the implementation of BDD by enabling the creation of executable specifications. This approach helps ensure that the software meets business needs and enhances overall project collaboration.